Ero, I. I., & Sanford, W. W. (2014). Guinea Savanna Structure and Land-use in Northwestern Nigeria. Obafemi Awolowo University.
Chicagoスタイル(17版)引用形式Ero, Isaac Izogie, , W. W. Sanford. Guinea Savanna Structure and Land-use in Northwestern Nigeria. Obafemi Awolowo University, 2014.
MLA(9版)引用形式Ero, Isaac Izogie, , W. W. Sanford. Guinea Savanna Structure and Land-use in Northwestern Nigeria. Obafemi Awolowo University, 2014.
警告: この引用は必ずしも正確ではありません.